clinton's departure had the energy of a campaign rally. as she left, some women were shouting "2016." an hour later on capitol hill, john kerry, already protected by state department security, was sworn in as the 68th secretary of state by supreme court justice elena kagan. he had said goodbye yesterday, causing a small stir by telling "the boston globe" president obama offered him the job a week before. before susan rice with drew on "rock center." >> did you want the job? >> i would have been very honored to serve in that job, just as i'm delighted to do what i'm doing. >> reporter: tonight, kerry told nbc news in a statement that he had been overly casual in his comment and clarified the president did not formally offer him that job until december after rice had withdrawn. he wants to focus on the middle east and climate change, but as clinton learned, he may not be able to choose his crises. >> andrea mitchell after another busy day at the state department. thanks. >>> it's that time of year. energy secretary steven chu announced his d